Hello, MJ!
I love both the Walt Disney World Dining Plan as well as allears.net!
Keep in mind that allears.net is not a Disney site, however, so those menu items and prices are approximate and subject to change. Many menus are available on Walt Disney World.com, far more so than in previous years.
Click here to get to a sample menu for Rainforest Cafe at Disney's Animal Kingdom Park. The sample menu is a PDF you can find on the right side of the page, under "Price Level."
A general rule of thumb for the Dining Plan is that anything served in a souvenir cup is not included. However, we've had many meals at locations such as Rainforest Cafe, T-Rex and Le Cellier, all of which allow a specialty, non-alcoholic smoothie to be included as our beverage on the plan. For Rainforest Cafe's "Top Off Your Order," you are allowed to do so, but that additional charge (for shrimp, onion rings, etc.) will be added to your bill. So, it's not included in your plan, but, like an appetizer, you can pay for additional items as desired.
Enjoy your upcoming trip to Walt Disney World, and be sure to send any additional questions you may have as you think of them! I'd love to help!